RU2687040C1 - Method and apparatus for monitoring a backbone network - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: invention relates to backbone network monitoring. Generation of the first operation, administration and maintenance (OAM) message for quality of service control from the local network terminal station to the peer-to-peer network terminal are provided; aggregating a first OAM message with a first IP service message for transmitting service information from a local network terminal station to a peer-to-peer network endpoint; and sending the first aggregated message generated from the aggregation to the peer-to-peer network end station. First aggregated message is used by a terminal station of a peer-to-peer network to determine quality of service from a terminal station of a local network to a terminal station of a peer-to-peer network.

EFFECT: high accuracy of monitoring without considering the state of the backbone network.

12 cl, 10 dwg, 2 tbl

Description

[001] Embodiments of the present invention relate, but without limitation, to the field of communications and, in particular, relate to a method and device for monitoring a core network.

BACKGROUND OF THE INVENTION

[002] With the introduction and development of services such as 3rd generation technology (3G) and Long Term Development (LTE), the role of data processing and transmission services increases, the demand for bandwidth in data processing and transmission services rapidly grows, and the construction of packaged core networks has become an irreversible trend. However, after packaging the core network, its quality of service, including delay, connection, and packet loss, needs to be monitored more than ever in real time. For this reason, the packaged core network supports a huge number of operating, management and maintenance (OAM) procedures. Although many types and levels of OAM are supported, there is no accurate end-to-end OAM control for Internet Protocol (IP) services among networks. This leads to inconvenience in servicing various forms of core networks.

[003] For example, in the prior art, an IP OAM processing device is added to a router device on a Layer 2 virtual private network provider (L2VPN PE) to implement out-of-end OAM control in L2VPN and L3VPN. However, in this solution, the device must be added to the L2VPN PE device, and the state of the core network must be taken into account, resulting in inconvenient control of low accuracy.

[004] With regard to the above problem, an effective solution has not yet been found.

BRIEF DESCRIPTION OF THE INVENTION

[005] The following is a brief description of the essence of the object of the invention, described in detail in this document. This summary is not intended to limit the scope of the claims.

[006] Embodiments of the present invention provide a method and apparatus for monitoring a core network to solve at least the inconvenient low accuracy control problem presented in the prior art. The problem is caused by the need to take into account the state of the core network when monitoring the quality of service of the core network.

[007] According to one aspect of the embodiments of the present invention, a method for monitoring a core network is provided. The method includes generating a first operation, management and maintenance (OAM) message for monitoring the quality of service from the local network terminal station to the peer-to-peer network terminal station, where the first OAM message carries information about the first parameter to be detected to detect the quality of service from the local terminal station network to the terminal station peer-to-peer network; aggregating the first OAM message with the first Internet Protocol (IP) service message for transmitting service information from the local network terminal station to the peer-to-peer network terminal station; and sending the first aggregated message generated from the aggregation to the end station of the peer-to-peer network. The first aggregated message is used by the terminal station of the peer-to-peer network to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network.

[008] Optionally, after sending the aggregated message generated from the aggregation to the end station of the peer-to-peer network, the method further includes receiving a second OAM message sent by the end station of the peer-to-peer network, which is determined according to the first OAM message of the end station of the peer-to-peer network; and determining the quality of service from the local network terminal station to the peer-to-peer network terminal station and the quality of service from the peer-to-peer network terminal station to the local network terminal station according to the second OAM message. The second OAM report carries information about the second detectable parameter for detecting the quality of service from the terminus of the local network to the terminating station of the peer-to-peer network and information about the third detectable parameter for detecting the quality of service from the terminating station of the peer-to-peer network to the terminus of the local network.

[009] Optionally, receiving a second OAM message sent by the peer-to-peer network terminal, which is determined according to the first OAM message of the peer-to-peer network, includes receiving a second aggregated message sent by the peer-to-peer network. The second aggregated message is aggregated from the second OAM message and the second IP service message to transfer service information from the peer-to-peer network end station to the local network end station.

[0010] According to one aspect of the embodiments of the present invention, another method for monitoring a core network is provided. The method includes receiving the first aggregated message, which is aggregated from the first OAM message to monitor the quality of service from the local network terminal station to the peer-to-peer network terminal station and the first IP service message to transfer service information from the local network terminal station to the peer-to-peer network station, where the first OAM report carries information about the first parameter to be detected for detecting the quality of service from the terminal station of the local network to the terminal station AI peer-to-peer network; and determining the quality of service from the LAN terminal station to the peer-to-peer network terminal station according to the first OAM message.

[0011] Optionally, after determining the quality of service from the terminal of the local network to the terminal of the peer-to-peer network according to the first OAM message, the method further includes determining a second OAM message according to the first OAM message, where the second OAM message carries information about the second parameter to be detected for detecting the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network and information on the third parameter to be detected for detection Quality of service from the terminal station of the peer-to-peer network to the terminal station of the local network; and sending the designated second OAM message to the LAN terminal station, where the second OAM message is used by the LAN terminal station to determine the quality of service from the LAN terminal station to the peer-to-peer network terminal and the quality of service from the peer-to-peer network terminal to the local network terminating station .

[0012] Optionally, sending the designated second OAM message to the local network terminal station involves sending a second aggregated message to the local network terminal station, where the second aggregated message is generated from the second OAM message and the second IP service message to transmit the service information from the terminal peer-to-peer network stations to a local network termination station.

[0013] According to another aspect of the embodiments of the present invention, an apparatus for monitoring a core network is provided. The device comprises a generating unit configured to generate a first OAM message for monitoring the quality of service from the terminal of the local network to the terminal of the peer-to-peer network, where the first message of the OAM carries information about the first parameter to be detected to detect the quality of service from the terminal of the local network to peer-to-peer network terminal station; an aggregation unit configured to aggregate the first OAM message with the first IP service message for transmitting service information from the local network terminal station to the peer-to-peer network terminal station; and a first sending unit configured to send the first aggregated message generated from the aggregation to the terminal station of the peer-to-peer network, the first aggregated message being used by the terminal station of the peer-to-peer network to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network.

[0014] Optionally, the device further comprises a first receiving unit, configured to, after sending the first aggregated message generated from the aggregation, to the end station of the peer-to-peer network, receive the second OAM message sent by the end station to the peer-to-peer network, which is determined according to the first message about The OAM end station of the peer-to-peer network, where the second OAM report carries information about the second parameter to be detected in order to detect the quality of service from the endpoint Antium LAN ad hoc network before the terminal station and the information about the third parameter to be detected to detect the quality of service from the terminal station to an ad hoc network LAN terminal station; and a first determining unit, configured to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network and the quality of service from the terminal station of the peer-to-peer network to the terminal station of the local network according to the second OAM message.

[0015] Optionally, the first receiving unit is further configured to receive a second aggregated message sent by the end station of the peer-to-peer network, while the second aggregated message is aggregated from the second OAM message and the second IP service message to transfer service information from the end station to the peer-to-peer network to the terminal station of the local network.

[0016] According to another aspect of the embodiments of the present invention, another device is provided for monitoring a core network. The device contains a second receiving unit, configured to receive the first aggregated message, which is aggregated from the first OAM message to monitor the quality of service from the local network terminal station to the peer-to-peer network terminal station and the first IP service message to transmit service information from the local terminal station network to the peer-to-peer terminal station, where the first OAM report carries information about the first parameter to be detected to detect the quality of service from terminal station of the local network to the terminal station of the peer-to-peer network; and a second determining unit, configured to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM message.

[0017] Optionally, the device further comprises a third determination unit, configured to determine the second OAM message according to the first OAM message after determining the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM message, where the second OAM message carries information about the second parameter to be detected to detect the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network and information about t reteem to be detected parameter to detect the quality of service from the end station of the peer-to-peer network to the terminal station of the local network; and a second sending unit configured to send a designated second OAM message to a local network terminal station, where the second OAM message is used by the local network terminal station to determine the quality of service from the local network terminal station to the peer-to-peer network terminal and the quality of service from the terminal station ad hoc network to the terminal station of the local network.

[0018] Optionally, the second sending unit is further configured to send the second aggregated message to the terminal station of the local network, where the second aggregated message is aggregated from the second OAM message and the second IP service message to transfer service information from the end station to the peer-to-peer network station network.

[0019] Embodiments of the present invention further provide a computer-readable storage medium configured to store computer-executable instructions for performing any method of monitoring the core network described above.

[0020] In embodiments of the present invention, the quality of service of the core network is controlled by embedding the transmitter in the user interface with the network (UNI) of the router on the provider side (PE) at one end station of the core network and embedding the transmitter or reflector in the UNI interface PE at the other end backbone station. By generating the first OAM message for controlling the quality of service from the terminal of the local network to the terminal of the peer-to-peer network, where the first message of the OAM carries information about the first parameter to be detected for detecting the quality of service from the terminal of the local network to the terminal of the peer-to-peer network; aggregating the first OAM message with the first IP service message to transfer service information from the terminating LAN station to the terminating peer-to-peer network; and sending the first aggregated message generated from the aggregation to the terminal station of the peer-to-peer network, where the first aggregated message is used by the terminal station of the peer-to-peer network to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network, -in-end "without regard to the state of the core network, thereby achieving the effect of simplifying control and improving the accuracy of control, and thus re Single control inconvenient problem of low accuracy caused by the need to allow the state of the home network under the control of the quality of service core network, presented in the prior art.

[0021] Other features and advantages of the embodiments of the present invention will be described in detail in this document further in the description and, moreover, will become partially obvious from the description or will be understood when implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by means of the structures set forth in the description, claims and graphic materials.

[0022] Other aspects will be understood after reading and considering the accompanying graphic materials and detailed description.

BRIEF DESCRIPTION OF GRAPHIC MATERIALS

[0023] The accompanying graphics described herein are used to provide a deeper understanding of the present invention and are part of the present invention. The exemplary embodiments and their descriptions in the present invention are used to explain the present invention and do not constitute inappropriate restrictions of the present invention. On the attached graphic materials:

[0024] in FIG. 1 is a block diagram of an optional method for monitoring a core network according to an embodiment of the present invention;

[0025] in FIG. 2 is a block diagram of another optional method for monitoring a core network according to an embodiment of the present invention;

[0026] in FIG. 3 is a schematic diagram of an optional device for monitoring a core network according to an embodiment of the present invention;

[0027] in FIG. 4 is a schematic diagram of another optional device for monitoring a core network according to an embodiment of the present invention;

[0028] in FIG. 5 is a circuit diagram of a reference network monitoring with a transmitter and a reflector according to an embodiment of the present invention;

[0029] in FIG. 6 is a circuit diagram of a reference network monitoring with a transmitter and another transmitter according to an embodiment of the present invention;

[0030] in FIG. 7 is a diagram illustrating an L2VPN and L3VPN network according to an embodiment of the present invention;

[0031] in FIG. 8 is a block diagram illustrating the processing, in case a transmitter is integrated in the PE module according to an embodiment of the present invention;

[0032] in FIG. 9 is a block diagram illustrating the processing, in the case where a reflector is built into the PE module according to an embodiment of the present invention; and

[0033] in FIG. 10 is a diagram illustrating an L2VPN network according to an embodiment of the present invention.

DETAILED DESCRIPTION

[0034] The solutions in the embodiments of the present invention will be clearly and completely described in combination with the accompanying graphic materials in the embodiments of the present invention, of which solutions will be obvious to those skilled in the art. The embodiments described below are a part, and not all embodiments of the present invention. Based on the embodiments described herein, other embodiments obtained by those skilled in the art, provided there is no creative work, are included in the scope of the present invention.

[0035] It should be noted that the terms “first,” “second,” and the like in the description, claims, and graphic materials of the present invention are used to distinguish between similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that the information used in this way is interchangeable, where necessary, so that the embodiments of the present invention described in this document can also be implemented in a sequence that is not disclosed or not described in this document. In addition, the terms “comprising,” “including,” or any other variations thereof described herein are intended to encompass non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or elements includes not only the steps or elements that are explicitly listed, but can also include other steps or elements that are not explicitly listed or are characteristic of such a process, method, system , product or device.

[0036] According to embodiments of the present invention, there is provided an embodiment of a method for monitoring a core network. It should be noted that the steps shown in the flowcharts in the accompanying graphics may be implemented by a computer system, such as a group of computer-executable commands, and although the flowcharts show logical sequences, the steps shown or described may in some cases be performed in sequences that differ from the sequences described in this document.

[0037] FIG. 1 is a block diagram of an optional method for monitoring a core network according to an embodiment of the present invention. As shown in FIG. 1, the method includes the following steps.

[0038] At step S102, the first OAM message is generated to monitor the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network. The OAM message carries information about the first parameter to be detected for detecting the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network.

[0039] In step S104, the first OAM message is aggregated with the first IP service message to transmit the service information from the terminating LAN station to the terminating peer-to-peer network.

[0040] In step S106, the first aggregated message generated from the aggregation is sent to the terminal station of the peer-to-peer network, where the first aggregated message is used by the terminal station of the peer-to-peer network to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network.

[0041] It should be noted that in the embodiments of the present invention, the parameters to be detected include, but are not limited to, at least one of the following parameters: the number of service messages, alarm information and the timestamp of each message. The parameters to be detected in this case include the first parameter to be detected, the second parameter to be detected, and the third parameter to be detected, described later in this document.

[0042] Through the above steps, the quality of service of the core network is monitored using the method of embedding the transmitter in the user interface with the network (UNI) of the router on the provider side (PE) at one end station of the core network and embedding the transmitter or reflector in the UNI interface PE at the other end backbone station. Thus, the goal of controlling the quality of network service "from end to end" without taking into account the state of the core network is achieved, thereby achieving the effect of simplifying control and improving control accuracy, and thus solving the problem of inconvenient control of low accuracy, caused by the need to take into account the state of the core network when monitoring the quality of service of the core network presented in the prior art.

[0043] Optionally, after sending the first aggregated message generated from the aggregation to the end station of the peer-to-peer network, the method further includes the steps described below.

[0044] In step S12, a second OAM message is determined, determined according to the first OAM message, and sent by the end station to the peer-to-peer network. The second OAM report carries information about the second detectable parameter for detecting the quality of service from the terminus of the local network to the terminating station of the peer-to-peer network and information about the third detectable parameter for detecting the quality of service from the terminating station of the peer-to-peer network to the terminus of the local network.

[0045] At step S14, the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network and the quality of service from the terminal station of the peer-to-peer network to the terminal station of the local network are determined according to the second OAM message.

[0046] Through the above steps, the peer-to-peer network end station can determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network, i.e., determine the quality of service of the uplink channel of the terminal station of the peer network by means of an aggregated message ; and at the same time, the terminal station of the local network can determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network, that is, determine the quality of service of the uplink channel of the terminal station of the peer-to-peer network and the quality of service of the downlink service of the terminal station of the local network by means of a second message about oam. Therefore, through the above steps, it is possible to control the quality of service of two communication lines of the core network.

[0047] Optionally, receiving a second OAM message determined according to the first OAM message and sent by the end station to the peer-to-peer network includes the steps described below.

[0048] At step S16, the second aggregated message sent by the end station of the peer-to-peer network is received, where the second aggregated message is aggregated from the second OAM message and the second IP service message to transfer service information from the terminal station of the peer-to-peer network to the terminal station of the local network.

[0049] At the same time, the transmitter is embedded in the UNI interface of the PE device at the endpoint of the peer-to-peer network, and another transmitter is embedded in the UNI interface of the PE device at the terminal station of the local network. In addition, if the reflector is embedded in the PE device's UNI interface at the endpoint of the peer-to-peer network, step S16 can be replaced by “receiving an OAM message that is generated from the loopback process of the OAM message received by the endpoint station of the peer-to-peer network and transmitted back to the transmitter terminal station LAN.

[0050] Through the above steps, when monitoring the quality of service of the core network, other IP service data packets can be transmitted, thereby improving the utilization rate of the core network.

[0051] According to embodiments of the present invention, an embodiment of another method of monitoring a core network is provided. It should be noted that the steps shown in the flowcharts in the accompanying graphics may be implemented by a computer system, such as a group of commands executed by computers, and although the flowcharts show logical sequences, the steps shown or described may in some cases be carried out in sequences that differ from the sequences described in this document.

[0052] FIG. 2 is a block diagram of another optional method for monitoring a core network according to an embodiment of the present invention. As shown in FIG. 2, the method includes the steps described below.

[0053] In step S202, the first aggregated message is received. The first aggregated message is aggregated from the first OAM message to monitor the quality of service from the local network terminal station to the peer-to-peer network terminal station and the first IP service message to transmit service information from the local network terminal station to the peer-to-peer network terminal, and the first OAM message carries information about the first parameter to be detected for detecting the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network.

[0054] In step S204, the quality of service is determined from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM message.

[0055] Through the above steps, the quality of service of the core network is controlled by embedding the transmitter in the user interface with the network (UNI) of the router on the provider side (PE) at one end station of the core network and embedding the transmitter or reflector in the UNI interface PE at the other end station of the reference network network. Thus, the goal of controlling the quality of network service "from end to end" without taking into account the state of the core network is achieved, thereby achieving the effect of simplifying control and improving control accuracy, and thus solving the problem of inconvenient control of low accuracy, caused by the need to take into account the state of the core network when monitoring the quality of service of the core network presented in the prior art.

[0056] Optionally, after determining the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM message, the method further includes the steps described below.

[0057] In step S22, the second OAM message is determined according to the first OAM message. The second OAM report carries information about the second detectable parameter for detecting the quality of service from the terminus of the local network to the terminating station of the peer-to-peer network and information about the third detectable parameter for detecting the quality of service from the terminating station of the peer-to-peer network to the terminus of the local network.

[0058] In step S24, the determined second OAM message is sent to the terminal station of the local network. The second OAM message is used by the LAN termination station to determine the quality of service from the LAN termination station to the peer-to-peer network and the quality of service from the peer-to-peer network to the terminal of the local network.

[0059] Through the above steps, the peer-to-peer network end station can determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network, i.e., determine the quality of service of the uplink channel of the terminal station of the peer network by means of an aggregated message ; and at the same time, the terminal station of the local network can determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network, that is, determine the quality of service of the uplink channel of the terminal station of the peer-to-peer network and the quality of service of the downlink service of the terminal station of the local network by means of a second message about oam. Therefore, through the above steps, it is possible to control the quality of service of the two directions of the communication lines of the core network.

[0060] Optionally, sending the designated second OAM message to the terminal station of the local network includes the steps described below.

[0061] In step S26, the second aggregated message is sent to the terminal station of the local network, where the second aggregated message is aggregated from the second OAM message and the second IP service message to transmit service information from the terminal station of the peer-to-peer network to the terminal station of the local network.

[0062] At the same time, the transmitter is embedded in the UNI interface of the PE device at the endpoint of the peer-to-peer network, and another transmitter is embedded in the UNI interface of the PE device at the terminal station of the local network. In addition, if the reflector is embedded in the PE device's UNI interface at the endpoint of the peer-to-peer network, step S16 can be replaced by “receiving an OAM message that is generated from the loopback process of the OAM message received by the endpoint station of the peer-to-peer network and transmitted back to the transmitter terminal station LAN.

[0063] Through the above steps, when monitoring the quality of service of the core network, other data packets of the IP service can be transmitted, thereby improving the utilization rate of the core network.

[0064] According to embodiments of the present invention, an embodiment of a device for monitoring a core network is provided.

[0065] FIG. 3 is a schematic diagram of an optional device for monitoring a core network according to an embodiment of the present invention. As shown in FIG. 3, the device comprises a generating unit 302, an aggregation unit 304, and a first sending unit 306.

[0066] The generating unit 302 is configured to generate a first OAM message for monitoring the quality of service from the terminal of the local network to the terminal of the peer-to-peer network, where the first message of the OAM carries information about the first parameter to be detected to detect the quality of service from the terminal of the local network to the endpoint of the peer-to-peer network.

[0067] The aggregation unit 304 is configured to aggregate the first OAM message with the first IP service message to transmit the service information from the terminating LAN station to the terminating peer-to-peer network station.

[0068] The first sending unit 306 is configured to send the first aggregated message generated from the aggregation to the terminal station of the peer-to-peer network, where the first aggregated message is used by the terminal station of the peer-to-peer network to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network.

[0069] Through the above embodiment, the quality of service of the core network is controlled by embedding the transmitter in the user interface with the network (UNI) of the router on the provider side (PE) at one end station of the core network and embedding the transmitter or reflector in the UNI interface PE at the other end station backbone network. Thus, the goal of controlling the quality of network service "from end to end" without taking into account the state of the core network is achieved, thereby achieving the effect of simplifying control and improving control accuracy, and thus solving the problem of inconvenient control of low accuracy, caused by the need to take into account the state of the core network when monitoring the quality of service of the core network presented in the prior art.

[0070] Optionally, the device further comprises a first receiving unit and a first determining unit.

[0071] The first receiving unit is configured to, after sending the first aggregated message generated from the aggregation, to the terminal station of the peer-to-peer network, receiving the second OAM message determined according to the first OAM message and sent by the terminal station to the peer-to-peer network. The second OAM report carries information about the second detectable parameter for detecting the quality of service from the terminus of the local network to the terminating station of the peer-to-peer network and information about the third detectable parameter for detecting the quality of service from the terminating station of the peer-to-peer network to the terminus of the local network.

[0072] The first determining unit is configured to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network and the quality of service from the terminal station of the peer-to-peer network to the terminal station of the local network according to the second OAM message.

[0073] A peer-to-peer network end station can determine the quality of service from the local network's terminal station to the peer-to-peer network end station, i.e., determine the quality of the uplink service of the local network's terminal station and the downlink quality of the end station of the peer-to-peer network using an aggregated message; and at the same time, the terminal station of the local network can determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network, that is, determine the quality of service of the uplink channel of the terminal station of the peer-to-peer network and the quality of service of the downlink service of the terminal station of the local network by means of a second message about oam. Therefore, by means of the above embodiment, it is possible to control the quality of service of two communication lines of the core network.

[0074] Optionally, the first receiving unit is further configured to receive a second aggregated message sent by the end station of the peer-to-peer network, which is aggregated from the second OAM message and the second IP service message to transmit service information from the end station of the peer-to-peer network to the terminal station local network.

[0075] In this case, the transmitter is embedded in the UNI interface of the PE device at the end station of the peer-to-peer network, and another transmitter is embedded in the UNI interface of the PE device at the terminal station of the local network. In addition, if the reflector is embedded in the PE device's UNI interface at the endpoint of the peer-to-peer network, step S16 can be replaced by “receiving an OAM message that is generated from the loopback process of the OAM message received by the endpoint station of the peer-to-peer network and transmitted back to the transmitter terminal station LAN.

[0076] Through the above embodiment, while monitoring the quality of service of the core network, other data packets of the IP service can be transmitted, thereby improving the utilization rate of the core network.

[0077] According to embodiments of the present invention, an embodiment of a device for monitoring a core network is provided.

[0078] FIG. 4 is a schematic diagram of another optional device for monitoring a core network according to an embodiment of the present invention. As shown in FIG. 4, the device comprises a second receiving unit 402 and a second determining unit 404.

[0079] The second receiving unit 402 is configured to receive the first aggregated message, which is aggregated from the first OAM message to monitor the quality of service from the local network terminal station to the peer-to-peer network terminal, and the first IP service message to transmit service information from the terminal station network to the terminal station peer-to-peer network. The first OAM report carries information about the first parameter to be detected for detecting the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network.

[0080] The second determining unit 404 is configured to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM message.

[0081] Through the above embodiment, the quality of service of the core network is controlled by embedding the transmitter in the user interface with the network (UNI) of the router on the provider side (PE) at one end station of the core network and embedding the transmitter or reflector in the UNI interface PE at the other end station backbone network. Thus, the goal of controlling quality of service is achieved without taking into account the state of the backbone network, thereby achieving the effect of simplifying control and improving control accuracy, and thus solving the problem of inconvenient control of low accuracy caused by the need to take into account the state of the backbone network when controlling the quality of service backbone network presented in the prior art.

[0082] Optionally, the device further comprises a third determining unit and a second sending unit.

[0083] The third determining unit is configured to determine the second OAM message according to the first OAM message after determining the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM message. The second OAM report carries information about the second detectable parameter for detecting the quality of service from the terminus of the local network to the terminating station of the peer-to-peer network and information about the third detectable parameter for detecting the quality of service from the terminating station of the peer-to-peer network to the terminus of the local network.

[0084] The second sending unit is configured to send a designated second OAM message to the terminal station of the local network. The second OAM message is used by the LAN termination station to determine the quality of service from the LAN termination station to the peer-to-peer network and the quality of service from the peer-to-peer network to the terminal of the local network.

[0085] A peer-to-peer network end station can determine the quality of service from the local network's terminal station to the peer-to-peer network end station, i.e., determine the quality of the uplink service of the terminal of the local network and the downlink quality of the end station of the peer-to-peer network by means of an aggregated message; and at the same time, the terminal station of the local network can determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network, that is, determine the quality of service of the uplink channel of the terminal station of the peer-to-peer network and the quality of service of the downlink service of the terminal station of the local network by means of a second message about oam. Therefore, by means of the above embodiment, it is possible to control the quality of service of two communication lines of the core network.

[0086] Optionally, the second sending unit is further configured to send the second aggregated message to the local network end station, which is aggregated from the second OAM message and the second IP service message to transfer service information from the end-to-end peer station to the local network end station .

[0087] In this case, the transmitter is embedded in the UNI interface of the PE device at the end station of the peer-to-peer network, and another transmitter is embedded in the UNI interface of the PE device at the terminal station of the local network. In addition, if the reflector is embedded in the PE device's UNI interface at the endpoint of the peer-to-peer network, step S16 can be replaced by “receiving an OAM message that is generated from the loopback process of the OAM message received by the endpoint station of the peer-to-peer network and transmitted back to the transmitter terminal station LAN.

[0088] By means of the above embodiment, when monitoring the quality of service of the core network, other data packets of the IP service can be transmitted, thereby improving the utilization rate of the core network.

[0089] It should be noted that the method and apparatus provided by the embodiments of the present invention are used to accurately control the quality of service of an IP back-to-end network, regardless of the state of the core network. The device contains a transmitter and a reflector or contains a transmitter and another transmitter. When using one of the transmitter and reflector or transmitter and another transmitter is embedded in the UNI interface of the PE device at one end station of the IP service core network to be monitored, and the other of them is embedded in the UNI interface of the PE device at the other end station of the core network IP service to be monitored. The case where the transmitter works in conjunction with a reflector is shown in FIG. 5. The case where the transmitter works in conjunction with another transmitter is shown in FIG. 6

[0090] The transmitter includes an IP OAM message send / complete processing module, an IP OAM message transmission / concatenation processing module, and an aggregation / distribution processing module for converting the IP OAM message and IP service message or separating the IP OAM message from the IP message -service These modules have the following functions. The send / terminate IP OAM message processing module is configured to generate an IP OAM message in the upstream direction, complete the IP OAM message in the downstream direction, and record and analyze related monitoring information. The aggregation / distribution processing module is configured to, in an upstream direction, aggregate an IP OAM message with an IP service message and send an aggregated IP OAM message and an IP service message to a subsequent module and, in a downstream direction, separate the IP OAM message from IP service messages and sending them to the downstream module, in which the transmitter is embedded, and the sending / terminating IP OAM message processing module, respectively. The IP OAM message transmission / concatenation processing module is configured to, in the upstream direction, generate transmission control information of the IP service level transmission terminal and add transmission control information to the IP OAM message and, in the downstream direction, generate reception control information an IP service level transmission terminal and adding reception control information to the IP OAM message.

[0091] The reflector includes an IP OAM message reflection reflection processing module. The module performs the following functions: identification, downstream, IP OAM messages to be reflected, UDP DPORT exchange with UDP SPORT, DIP exchange with SIP, DMAC exchange with SMAC, upstream loopback and sending the IP OAM message back to the managed uplink module. In the above process of exchanging fields and looping messages, you need to add information about the control of the IP service of the downward level and information about the control of the IP service of the upstream level to their respective messages about the IP OAM.

[0092] For example, if a transmitter and a reflector are used together to monitor the quality of service of the core network, the IP OAM message is processed in accordance with the following process:

[0093] (a) In the upstream direction, the IP OAM initiation / completion processing module generates a corresponding IP OAM message in accordance with the settings and sends the IP OAM message to the aggregation / distribution processing module. The IP OAM message is a User Datagram Protocol (UDP) message. The IP address, priority, and encapsulating L2 header of an IP OAM message should be the same as the IP service to be monitored. The UDP port number is a special port number. UDP payload is an IP OAM PDU. When initiating an IP service message, the transmitter must add information about the time the message was transmitted by the transmitter to the appropriate IP OAM message, that is, add a time stamp to the IP OAM message.

[0094] (b) In the upstream direction, the aggregation / distribution processing module aggregates the common IP service message with the newly generated IP OAM message and sends the aggregated message to the IP OAM transmission / concatenation processing module.

[0095] (c) In the upstream direction, the IP OAM message transmission / concatenation processing module counts the number of common IP service messages to be monitored according to the port information, VLAN, DIP, SIP and priority and adds the statistical result to the corresponding IP message Oam

[0096] (d) The IP OAM message and the IP service message are processed in accordance with the standard service process and sent from the network node interface (NNI).

[0097] (e) After forwarding by intermediate backbone devices, these messages reach a boundary device, such as PE. In accordance with the standard downstream processing process, the IP OAM message and the IP service message are sent in the downstream direction of the corresponding UNI interface.

[0098] (f) In the downstream direction, the reflection processing module of the IP OAM message of the reflector identifies the IP OAM message and the IP service message according to the settings (including port information, VLAN, DIP, SIP, as well as UDP DPORT, UDP SPORT and the priority used by IP OAM) collects statistical data for the IP service message, adds the statistical result and time stamp to the corresponding IP OAM message, then exchanges UDP DPORT with UDP SPORT, exchanges DIP with SIP, exchanges DMAC with SMAC, loops in upstream direction and aggregates The message of the IP OAM and the rising IP-message service processing in an upward channel.

[0099] (g) In the upstream direction, the reflector IP OAM message reflection reflection module adds the statistical result and timestamp of the upstream IP service message to the looped IP OAM message.

[00100] (h) A Wired (i.e., reflected) IP OAM message and a normally received IP service message are processed in accordance with a standard service process and sent from the NNI interface to the core network.

[00101] (i) After forwarding by the core network, the messages are finally sent downstream to the UNI interface where the transmitter is located.

[00102] (j) In the downstream direction, the IP OAM message transmission / concatenation processing module identifies the IP OAM message and the IP service message in accordance with the relevant port information, VLAN, IP address, UDP DPORT, UDP SPORT, and priority, collects statistics for the IP service message and adds the statistical result to the corresponding IP OAM message.

[00103] (k) In the downstream direction, the IP OAM message aggregation / distribution processing module sends the IP OAM message to be completed to the IP OAM message initiation / completion processing module.

[00104] (l) In the downstream direction, the IP OAM message initiation / completion processing module adds the completion timestamp, analyzes the IP OAM PDUs, and records the monitoring information here, including the statistical result and timestamp.

[00105] (m) The transmitter analyzes the statistical result of the message, timestamp, and other information and, based on this information, calculates the result of monitoring the IP service "from end-to-end" from the terminal station of the local network to the terminal station of the peer-to-peer network and IP service "from end to end" from the end station of the peer-to-peer network to the terminal station of the local core network, based on the packet loss, delay, connection, etc.

[00106] In the connected state, since the IP service message and the IP OAM message coexist, the monitoring information can be used to obtain information about the connectivity of the bi-directional backbone communication lines, the bi-directional packet loss of the IP service message, and the bi-directional delay jitter. In offline mode, there is actually no IP service message. In this case, a high traffic IP OAM message is used to efficiently simulate an IP service message to obtain information about delay jitter, and the IP OAM message traffic is changed by packet loss of the IP OAM message of the transmitter and in combination with the dichotomy. IP service network is achieved by continuous discovery.

[00107] In addition, if a transmitter and another transmitter are used together to monitor the quality of service of the core network, there is no reflector processing flow, uplink transmission at one end station corresponds to downlink transmission at the other end station, and two streams unidirectional processing is the above process with steps (f) → (i) removed. The send / terminate IP OAM message processing module also needs to record some information completed on the downlink in an IP OAM message sent on the uplink so that two transmitters can receive control information in two directions, respectively.

[00108] The implementation of the above process leads to the following positive effects. The quality of service of IP services "from end to end" of the core network is effectively and accurately controlled. Compared with the prior art, the adaptation range is extended, and there is no network limitation on the core network. Improved ability to control. In the connected state, you can control the IP service connection, the loss of service packages and the jitter service delay. In a standalone state, you can effectively simulate an IP service message, as well as obtain operating parameters such as network connectivity, packet loss rate and jitter delay of the IP service in the core network through monitoring.

[00109] The following describes the present invention in detail through the following embodiments in combination with various control equipment operation modes, such as transmitter co-operation with another transmitter or transmitter co-operation with a reflector.

[00110] an implementation Option 1

[00111] In the connected state, a transmitter and a reflector are used together to monitor the operating parameters of an IP-from-end-to-end service in the L2VPN + L3VPN network.

[00112] The L2VPN + L3VPN network is shown in FIG. 7. In this embodiment, the transmitter is embedded in the PEI UNI interface, as shown in FIG. 8, and the reflector is embedded in the PEI UNI interface, as shown in FIG. 9. The format of the IP OAM message used in this embodiment is shown in Table 1. In the connected state, it is necessary to monitor bidirectional IP services between the base station (10.1.1.10) and the serving gateway (SGW) (30.1.1.2).

Table 1

[00113] The following describes in detail the process of performing an IP OAM message.

[00114] (a) The IP OAM message transmitter function is available on the UNI interface connecting the PE1 device and the base station. The following features are configured: VLAN, DIP (30.1.1.2), SIP (10.1.1.10), and DSCP whose service is subject to control, UDP DPORT and UDP SPORT to be used with the IP OAM message, as well as the length of the fill and the speed of sending the IP message Oam

[00115] (b) The IP OAM reporting reflector function is available on the UNI interface connecting the PE3 and SGW devices. The following features are configured: VLAN, DIP, SIP and DSCP, whose service is monitored, as well as UDP DPORT and UDP SPORT to reflect the IP OAM message.

[00116] (c) After setting up the basic setup information, the transmitter and reflector on the transmitter provide the monitoring function. In this case, the initiation / completion processing module of the IP OAM message of the transmitter starts to send an IP OAM message at the configured speed and provides an idle alarm timer in accordance with the IP OAM event. The IP OAM message is a UDP message. The DIP, SIP, and DSCP in the L2 header and L3 header of the IP OAM message are consistent with the information related to the service to be monitored. UDP DPORT and UDP SPORT are ports intended for IP OAM. "Sender Tx Timestamp" is a timestamp when generating. “Test ID” is the control event ID. "Serial number" is gradually increasing.

[00117] (d) In the upstream direction, the aggregation / distribution processing module of the IP OAM message of the transmitter aggregates the initiated IP OAM message with the overhead message entered in the user port, and sends the aggregated message to the IP OAM transmission / concatenation processing module.

[00118] (e) The transmitter / concatenation processing module of the transmitter's IP OAM message needs to identify the IP OAM message and the service message. For a service message, statistics must be collected in accordance with VLAN, DIP, SIP, DSCP, and other configuration information. To report on IP OAM, you must correctly enter the real-time statistics corresponding to the service message in the “Sender Tx Customer Pckt” field.

[00119] (f) The service message and the IP OAM message are processed in accordance with the standard UNI L2VPN → NNI process, encapsulated using PW / LSP tags and redirected to the core network via the NNI interface.

[00120] (g) After bridging and forwarding L2VPN-L3VPN, the IP OAM message and the IP service message redirect the downstream UNI interface connecting PE3 and SGW.

[00121] (h) In the downstream direction of the UNI interface, the Reflector IP OAM Reflection Message Reflection Processing Module identifies the IP service message to be monitored and the IP OAM message to be looped in according to configured VLAN, DIP, SIP and DSCP, as well as UDP DPORT and UDP SPORT used by IP OAM. For service message collect statistical data. For an IP OAM message, a reception timestamp should be added to the Reserved for Reflector Rx Timestamp field of the message, and service statistics should be added to the Reserved for Reflector Rx Customer Pckt field of the message. DMAC and SMAC are then exchanged with each other, DIP and SIP are exchanged with each other, and UDP DPORT and UDP SPORT are exchanged with each other. IP TTL is changed to 255. The IP header field checksum and UDP header field checksum are updated. Then perform a looping in the upstream direction of the UNI interface.

[00122] (i) After the IP OAM message that is looped in the upstream direction of the UNI interface and the IP service message sent by the SGW to the base station converge, in the upstream direction of the reflection processing module of the IP OAM message, the IP message the service (DIP = 10.1.1.10, SIP = 30.1.1.2) to be monitored and the loopback IP OAM report are identified according to the configured VLAN, DIP, SIP and DSCP, as well as UDP DPORT and UDP SPORT used by IP OAM. For service message directly collect statistical data. For an IP OAM message, a timestamp is added to the Reserved for Reflector Tx Timestamp field, and statistical data is added to the Reserved for Reflector Tx Customer Pckt field, and then sent to the downlink module.

[00123] (j) The IP service message and the looped IP OAM message are processed in accordance with the standard UNI L3VPN → NNI process, encapsulated using PW / LSP tags and redirected to the core network via the NNI interface.

[00124] (k) By bridging the L2VPN-L3VPN backbone and forwarding the L2VPN, the IP OAM message and the IP service message are forwarded in the downstream direction of the UNI interface connecting the PE1 and the main station.

[00125] (l) In the downstream direction of the PEI UNI interface, the IP OAM message transmission / concatenation processing module identifies the IP OAM message and the IP service message according to the pre-configured information. For a message to an IP service, statistics are collected directly. For an IP OAM report, the statistics for the corresponding IP service message are added to the “Reserved for Sender Rx Customer Pckt” field.

[00126] (m) In the downstream direction of the aggregation / distribution processing module of the IP OAM message on the PE1 device, the IP OAM message is sent to the initiation / completion processing module of the IP OAM message, and the IP service message is sent to the interface processing module.

[00127] (n) In the downstream direction of the IP OAM initiation / completion processing module on the PE1 device, the IP OAM message is completed, including an out-of-order check, resetting the idle alarm timer, generating the Sender Rx Timestamp, calculating delays and calculation of packet loss rate. According to the results of the verification and calculation, you can monitor the quality of IP service "from end to end", including the connection of a bidirectional communication line, the loss of service packages, jitter delay and other information.

[00128] A bi-directional link connection may be determined by the presence of idle alarms. Idle alarms can be generated when the idle alarm timer reaches a predetermined threshold, and can be cleared when the idle alarm timer is less than the specified threshold.

[00129] The bidirectional delay is “Sender Rx Timestamp-Sender Tx Timestamp- (Reserved for Reflector Tx Timestamp-Reserved for Reflector Rx Timestamp)”. In the case of time synchronization PE1 and PE3, forward delay and reverse delay can be obtained. The forward delay is “Reserved for Reflector Rx Timestamp-Sender Tx Timestamp”. The back delay is “Sender Rx Timestamp-Reserved for Reflector Tx Timestamp”.

[00130] The number of lost packets can be calculated using the following formulas:

[00131] TxFCf ＝ Sender Tx Customer Pckt;

[00132] RxFCf ＝ Reserved for Reflector Rx Customer Pckt;

[00133] TxFCb served Reserved for Reflector Tx Customer Pckt;

[00134] RxFCb ＝ Sender Rx Customer Pckt.

[00135] In this period from [tc] to [tp] the number of direct lost service packages is | TxFCf [tc] -TxFCf [tp] | -RxFCf [tc] -RxFCf [tp] |, and the number of reverse lost service packages is | TxFCb [tc] -TxFCb [tp] | - | RxFCb [tc] -RxFCb [tp] |. XX [tc] denotes the value at time [tc].

[00136] an implementation Option 2

[00137] In the autonomous state, the transmitter and the reflector are used together to monitor the operating parameters of the IP-from-end-to-end service in the L2VPN + L3VPN network.

[00138] The L2VPN + L3VPN network is shown in FIG. 7. In this embodiment, the transmitter is embedded in the PEI UNI interface, as shown in FIG. 8, and the reflector is embedded in the PEI UNI interface, as shown in FIG. 9. The format of the IP OAM report used in this embodiment is shown in Table 1. In an autonomous state, it is necessary to monitor the quality of the bidirectional IP service between the base station (10.1.1.10) and the SGW (30.1.1.2).

[00139] The following describes in detail the process of performing an IP OAM message.

[00140] (a) The IP OAM message transmitter function is available on the UNI interface connecting the PE3 and SGW devices. The following features are configured: VLAN, DIP (10.1.1.10), SIP (30.1.1.2), and DSCP, whose service is monitored, UDP DPORT and UDP SPORT to be used with the IP OAM message, as well as the length of the fill and the speed of sending the IP message Oam

[00141] (b) The IP OAM reporting reflector function is available on the UNI interface connecting the PE1 device and the main station. The following features are configured: VLAN, DIP, SIP and DSCP, whose service is monitored, as well as UDP DPORT and UDP SPORT to reflect the IP OAM message.

[00142] (c) After setting the basic setup information of the transmitter and the reflector on the transmitter, provide the monitoring function. In this case, the initiation / completion processing module of the IP OAM message of the transmitter starts to send an IP OAM message at the configured speed, provides an idle alarm timer in accordance with the IP OAM event, and counts the number of transmitted IP OAM messages. The IP OAM message is a UDP message. DIP, SIP, and DSCP in the L2 header and L3 header of the IP OAM message are consistent with the information associated with the service to be transmitted. UDP DPORT and UDP SPORT are port numbers for IP OAM. "Sender Tx Timestamp" is a timestamp when generating. “Test ID” is the control event ID. "Serial number" is gradually increasing.

[00143] (d) In the upstream direction, the aggregation / distribution processing module of the IP OAM message of the transmitter aggregates the initiated IP OAM message with the service message entered in the user port, and sends the aggregated message to the IP OAM transmission / concatenation processing module.

[00144] (e) The transmitter / concatenation processing module of the transmitter's IP OAM message needs to identify the IP OAM message and the service message. For a service message, statistics must be collected in accordance with VLAN, DIP, SIP, DSCP, and other configuration information. To report IP OAM, you must correctly enter real-time statistics for the corresponding service message in the “Sender Tx Customer Pckt” field. In this case, since the test is conducted offline, the service statistics are 0.

[00145] (f) The IP OAM message is processed in accordance with the standard UNI process L3VPN → NNI, encapsulated using PW / LSP tags and redirected to the core network via the NNI interface.

[00146] (g) The L2VPN-L3VPN bridging and forwarding report the IP OAM to forward the downstream direction of the UNI interface connecting the PE1 and the base station.

[00147] (h) In the downstream direction of the UNI interface, the Reflector IP OAM Reflection Message Reflection Processing Module identifies the IP service message to be monitored and the IP OAM message to be looped in accordance with the configured VLAN, DIP, SIP and DSCP, as well as UDP DPORT and UDP SPORT used by IP OAM. For service message directly collect statistical data. For an IP OAM message, a reception timestamp should be added to the Reserved for Reflector Rx Timestamp field of the message, and service statistics should be added to the Reserved for Reflector Rx Customer Pckt field of the message. DMAC and SMAC are then exchanged with each other, DIP and SIP are exchanged with each other, and UDP DPORT and UDP SPORT are exchanged with each other. IP TTL is changed to 255. The checksum in the IP header field and the checksum in the UDP header field are updated. Then the IP OAM message is looped in the upstream direction of the UNI interface. In the offline state, the service statistics are 0.

[00148] (i) After the loopback IP OAM message in the upstream direction of the UNI interface and simulated service converge, in the upstream direction of the reflection processing module of the IP OAM message, the IP service message (DIP = 30.1.1.2, SIP = 10.1 .1.10) the monitored and looped IP OAM report is identified according to the configured VLAN, DIP, SIP and DSCP, as well as UDP DPORT and UDP SPORT used by IP OAM. For service message directly collect statistical data. For an IP OAM message, a time stamp is added to the Reserved for Reflector Tx Timestamp field, and statistical data is added to the Reserved for Reflector Tx Customer Pckt field, and then sent to the downstream module. In this case, the service statistics are 0.

[00149] (j) The IP OAM loopback message is processed in accordance with the standard UNI L2VPN → NNI process, encapsulated using PW / LSP tags and redirected to the core network via the NNI interface.

[00150] (k) By bridging the L2VPN-L3VPN backbone and forwarding the L3VPN, the IP OAM message appears in the downstream direction of the UNI interface connecting PE3 and SGW.

[00151] (l) In the downstream direction of the UNI interface of the PE3 device, the IP OAM message transmission / concatenation processing module identifies the IP OAM message and the IP service message in accordance with the pre-configured information. For a message to an IP service, statistics are collected directly. For an IP OAM report, the statistics for the corresponding IP service message are added to the “Reserved for Sender Rx Customer Pckt” field. In the offline state, the service statistics are 0.

[00152] (m) In the downstream direction of the aggregation / distribution processing unit of the IP OAM message on the PE3 device, the IP OAM message is sent to the initiation / completion processing module of the IP OAM message.

[00153] (n) In the downstream direction of the initiation / completion IP OAM message processing module on the PE3 device, the IP OAM message is completed, including out-of-order checks, resetting the idle alarm timer, generating the Sender Rx Timestamp timestamp, counting the number of received IP OAM messages in accordance with the events and the calculation of the delay. The bidirectional delay is "Sender Rx Timestamp-Sender Tx Timestamp- (Reserved for Reflector Tx Timestamp-Reserved for Reflector Rx Timestamp)". In the case of time synchronization PE1 and PE3, forward delay and reverse delay can be obtained. The forward delay is “Reserved for Reflector Rx Timestamp-Sender Tx Timestamp”. The back delay is “Sender Rx Timestamp-Reserved for Reflector Tx Timestamp”.

[00154] (o) After sending a message for a certain period of time, you can stop sending transmitter packets, wait a certain period of time (to make sure that the data in the network has been transmitted to the receiver terminal station of the transmitter) and get the packet loss rate of this frame in during this time period using the formula: (total number of IP OAM messages transmitted - total number of received IP OAM messages) x 100 / total number of IP OAM messages transmitted. In addition, bandwidth carrying such a frame length can be obtained by changing the frame sending speed in combination with dichotomy, with continuous testing and calculation. Thus, the quality of service IP-service "from-to-end" can be obtained offline, including bandwidth, packet loss rate and information about the delay.

[00155] an implementation Option 3

[00156] The transmitter and another transmitter are used together to monitor the operating parameters of the IP service "from end to end" in a network with an available NNI-LAG function.

[00157] In the L2VPN network shown in FIG. 10, the NNI-LAG is provided between PE1 and PE2, there are several Ethernet services in the same pseudowire, the flow label distribution method is used in load balancing the NNI-LAG, and among the installed services, bidirectional services between IP: 10.1.1.2 and IP: 10.1 .1.3 are important, and their performance, such as packet loss rate and delay, is monitored.

[00158] In this embodiment, two transmitters are embedded in the UNI interface PE1 and the UNI interface PE2, respectively. A block diagram illustrating the processing in this case is shown in FIG. 8. The format of the IP OAM report used in this embodiment is shown in Table 2. In the connected state, it is necessary to control the quality of the bidirectional IP service between IP: 10.1.1.2 and IP: 10.1.1.3.

table 2

[00159] The following describes in detail the process of performing the IP OAM message.

[00160] (a) The IP OAM message transmitter function is available on the UNI interface connecting the PE1 and IP device: 10.1.1.2. The following features are configured: VLAN, DIP (10.1.1.3), SIP (10.1.1.2), and DSCP, whose service is subject to control, as well as UDP DPORT and UDP SPORT, which are to be used by the IP OAM message.

[00161] (b) The IP OAM message transmitter function is available on a UNI interface connecting a PE3 and IP device: 10.1.1.3. The following features are configured: VLAN, DIP (10.1.1.2), SIP (10.1.1.3), and DSCP, whose service is subject to control, as well as UDP DPORT and UDP SPORT, which are to be used by the IP OAM message.

[00162] (c) After setting up the basic information, setting up two transmitters on one transmitter provides the monitoring function. In this case, the IP OAM initiation / termination processing module starts to send an IP OAM message at the configured rate. The IP OAM message is a UDP message. The DIP, SIP, and DSCP in the L2 header and L3 header of the IP OAM message are consistent with the information related to the service to be monitored. UDP DPORT and UDP SPORT are port numbers for IP OAM reporting. “Sender Tx Timestamp” is a timestamp when generating an IP OAM message. “Sender Rx Timestamp” is the timestamp of the last time that the IP OAM message transmission by the peer transmitter was completed. The "Peer Sender Tx Timestamp" is the value in the "Sender Tx Timestamp" field when the IP OAM message sent by the peer transmitter was last completed. “Sender Rx Customer Pckt” is the number of received service messages when the IP OAM message sent by the peer transmitter was last completed. "Peer Sender Tx Customer Pckt" is the value in the "Sender Tx Customer Pckt field" field when the IP OAM message sent by the peer transmitter was last completed.

[00163] (d) In the upstream direction, the aggregation / distribution processing module of the IP OAM message of the transmitter aggregates the initiated IP OAM message with the overhead message entered in the user port and sends the aggregated message to the IP OAM transmission / concatenation processing module.

[00164] (e) The IP OAM module handling the processing / concatenation of the IP OAM message needs to identify the IP OAM message and the service message. For the service message, statistics should be collected in accordance with the configured VLAN, DIP, SIP and DSCP. To report IP OAM, you must correctly enter real-time statistics for the corresponding service message in the “Sender Tx Customer Pckt” field.

[00165] (f) The service message and the IP OAM message are processed in accordance with the standard UNI L2VPN → NNI process, encapsulated using the stream, the PW and LSP tags, and redirected to the core network via a physical interface selected according to the hash sum.

[00166] (g) When L2VPN is redirected, IP OAM messages and IP service messages in two directions will forward the PEI UNI interface and the PE2 downstream direction in a downstream direction, respectively.

[00167] (h) In the downstream direction of the UNI interface PE2 and the downstream direction of the UNI interface PE1, the reflector message reflection processing module identifies the IP OAM message and the IP service message according to the configured information. For a message to an IP service, statistics are collected directly. For an IP OAM report, the statistics for the corresponding IP service message are added to the “Reserved for Sender Rx Customer Pckt” field.

[00168] (i) In the downstream direction of the aggregation / distribution processing module of the IP OAM message to PE1 and PE2, the aggregation / distribution processing module of the IP OAM message sends an IP OAM message to the initiation / completion processing module of the IP OAM message and sends a message IP service to the interface processing module.

[00169] (j) In the downstream direction of the initiation / completion IP OAM message processing module on PE1 and PE2, the IP OAM message is completed, including out-of-order verification, idle alarm processing, generation of the “Reserved for Peer Sender Rx Timestamp” ”And blocking the fields“ Sender Tx Customer Pckt ”,“ Reserved for Peer Sender Rx Customer Pckt ”,“ Sender Tx Timestamp ”and“ Reserved for Peer Sender Rx Timestamp ”, calculating the delay and calculating the packet loss rate. According to the results of the verification and calculation, you can control the quality of IP service "from-to-end", including the connection of a bidirectional communication line, packet loss, jitter delay and other information.

[00170] The connection of the PE1 → PE2 link can be determined by whether PE2 is receiving idle alarms and IP OAM messages. Connecting the PE2 → PE1 link can be determined by whether PE1 is receiving idle alarms and IP OAM messages.

[00171] In the case of time synchronization between PE1 and PE2, the delay of the near terminal station (from the end station of the peer-to-peer network to the terminal station of the local network) is "Reserved for Peer Sender Rx Timestamp-Sender Tx Timestamp", and the delay of the far end station (from the terminal station network to the end station peer-to-peer network) is equal to "Sender Rx Timestamp-Peer Sender Tx Timestamp".

[00172] The number of lost packets can be calculated using the following formulas:

[00173] TxFCf ＝ Sender Tx Customer Pckt;

[00174] RxFCf ＝ Reserved for Peer Sender Rx Customer Pckt;

[00175] TxFCb ＝ Peer Sender Tx Customer Pckt;

[00176] RxFCb ＝ Sender Rx Customer Pckt.

[00177] During this period from [tc] to [tp], the number of lost service packages of the near terminal station (from the terminal station of the peer-to-peer network to the terminal station of the local network) is | TxFCf [tc] -TxFCf [tp] | - | RxFCf [tc ] -RxFCf [tp] |, and the number of lost service packages of the far terminal station (from the terminal station of the local network to the terminal station of the peer-to-peer network) is | TxFCb [tc] -TxFCb [tp] | - | RxFCb [tc] -RxFCb [tp ] |. XX [tc] denotes the value at time [tc].

[00178] Embodiments of the present invention further provide a storage medium. Optionally, in this embodiment, the storage medium may be configured to store program codes for performing the steps described below.

[00179] At step S32, a first OAM message is generated for monitoring the quality of service from the terminal of the local network to the terminal of the peer-to-peer network, where the message of OAM carries information about the first parameter to be detected for detecting the quality of service from the terminal of the local network to the terminal of peer-to-peer network.

[00180] In step S34, the first OAM message is aggregated with the first IP service message to transmit the service information from the terminating LAN station to the terminating peer-to-peer network.

[00181] In step S36, the first aggregated message generated from the aggregation is sent to the terminal station of the peer-to-peer network, where the first aggregated message is used by the terminal station of the peer-to-peer network to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network.

[00182] Optionally, the storage medium may be configured to store program codes for performing the steps in preferred implementations of the embodiments described above. Here it will not be described again in detail.

[00183] Optionally, in this embodiment, the storage medium may be, but not limited to, a U-disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, magnetic disk, optical disk, or any media able to store program codes.

[00184] Optionally, in this embodiment, the processor performs the following steps in accordance with the program codes stored in the storage medium.

[00185] At step S42, the first aggregated message is received, which is aggregated from the first OAM message to monitor the quality of service from the terminal of the local network to the terminal of the peer-to-peer network and the first message of the IP service to transmit service information from the terminal of the local network to the terminal peer station network.

[00186] In step S44, the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network is determined according to the first OAM report.

[00187] The foregoing relates only to the preferred embodiments of the present invention and is not intended to limit the scope of the present invention.

[00188] The serial numbers of the above embodiments of the present invention are used solely to simplify the description and do not indicate the superiority and inferiority of the embodiments.

[00189] In the above embodiments of the present invention, the description of each embodiment is separately highlighted. For a part not described in detail in one embodiment, reference may be made to the corresponding description of other embodiments.

[00190] It should be understood that the content disclosed in the embodiments of the present invention may be implemented in other ways. The embodiments of the devices described above are provided solely as examples. For example, blocks can be classified according to a logical function, and in practice a block can be classified in other ways. For example, several units or components may be combined or may be integrated into another system, or some functions may be omitted or not performed. In addition, the interconnection, direct connection, or communication connection presented or disclosed may refer to an indirect connection or communication connection through interfaces, devices, or units, or may be an electrical connection or connection in other forms.

[00191] The blocks described above as separate components may or may not be physically separated. Components represented as blocks may or may not be physical blocks, that is, they may be located in the same place or may be distributed over several blocks. A part or all of these blocks may be selected in accordance with actual requirements to achieve the objectives of the solutions of the embodiments of the present invention.

[00192] In addition, the various functional blocks in the embodiments of the present invention may be combined into one processing unit, or each functional unit may be physically represented separately, or two or more units may be combined into one unit. The combined functional unit may be implemented as a functional unit of hardware or software.

[00193] The foregoing relates only to preferred embodiments of the present invention. It should be noted that specialists in the art can make a number of improvements and modifications without departing from the idea of the present invention, and these improvements and modifications are within the scope of the present invention.

INDUSTRIAL APPLICABILITY

[00194] Embodiments of the present invention provide a method and apparatus for monitoring a core network. The method includes generating the first operation, management and maintenance (OAM) message to monitor the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network; aggregating the first OAM message with the first IP service message to transmit the service information from the terminating LAN station to the terminating peer-to-peer network; and sending the first aggregated message generated from the aggregation to the terminal station of the peer-to-peer network, where the first aggregated message is used by the terminal station of the peer-to-peer network to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network. Through the present invention, the problem of inconvenient control of low accuracy caused by the need to take into account the state of the core network while monitoring the quality of service of the core network presented in the prior art is solved.

Claims (33)

1. The method of controlling the core network, including: generating the first operation, management and maintenance (OAM) message to monitor the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network; aggregating the first OAM message with the first Internet Protocol (IP) service message for transmitting service information from the LAN terminal station to the peer-to-peer network station with generating the first aggregated message; and sending the first aggregated message to the terminal station of the peer-to-peer network; the first aggregated message is used by the terminal station of the peer-to-peer network to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network. 2. The method according to p. 1, characterized in that after sending the first aggregated message to the terminal station of the peer-to-peer network, the method further includes: receiving a second OAM message sent by the end station of the peer-to-peer network, which is determined according to the first OAM message by the end station of the peer-to-peer network; and determining the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network and the quality of service from the terminal station of the peer-to-peer network to the terminal station of the local network according to the second OAM message. 3. The method according to p. 2, characterized in that the reception of the second OAM message sent by the end station of the peer-to-peer network, which is determined according to the first OAM message by the end station of the peer-to-peer network, includes: receiving the second aggregated message sent by the end station of the peer-to-peer network; the second aggregated message is aggregated from the second OAM message and the second IP service message to transmit the service information from the end station of the peer-to-peer network to the terminal station of the local network. 4. The method of controlling the core network, including: receiving the first aggregated message, wherein the first aggregated message is aggregated from the first OAM message to monitor the quality of service from the local network terminal station to the peer-to-peer network terminal station and the first IP service message to transmit service information from the local network terminal station to the terminal station of the peer-to-peer networks; and determining the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM message. 5. The method of claim 4, wherein after determining the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM report, the method further includes: determining the second OAM message according to the first OAM message; and sending a specific second OAM message to the local network end station, the second OAM message being used by the local network end station to determine the quality of service from the local network terminal to the peer-to-peer network station and the quality of service from the terminal to the peer-to-peer network to the local network terminating station . 6. The method of claim 5, wherein the sending of a specific second OAM message to the terminal station of the local network includes: sending the second aggregated message to the terminal station of the local network; the second aggregated message is aggregated from the second OAM message and the second IP service message to transfer service information from the terminal station of the peer-to-peer network to the terminal station of the local network. 7. A device for monitoring the core network containing the generating unit, the aggregation unit and the first sending unit, moreover the generating unit is configured to generate a first OAM message for monitoring the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network; the aggregation unit is configured to aggregate the first OAM message with the first IP service message for transmitting service information from the terminal station of the local network to the terminal station of the peer-to-peer network with the generation of the first aggregated message; and the first sending unit is configured to send the first aggregated message to the terminal station of the peer-to-peer network, the first aggregated message being used by the terminal station of the peer-to-peer network to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network. 8. The device according to p. 7, characterized in that it further comprises a first receiving unit and a first determining unit, moreover the first receiving unit is configured to, after sending the first aggregated message to the end station of the peer-to-peer network, receive the second OAM message sent by the end station to the peer-to-peer network, which is determined according to the first OAM message by the end station of the peer-to-peer network; and the first determining unit is configured to determine the quality of service from the terminal of the local network to the terminal of the peer-to-peer network and the quality of service from the terminal of the peer-to-peer network to the terminal of the local network according to the second OAM message. 9. The device according to p. 8, characterized in that the first receiving unit is additionally configured to: receiving the second aggregated message sent by the end station of the peer-to-peer network; the second aggregated message is aggregated from the second OAM message and the second IP service message to transmit service information from the end station of the peer-to-peer network to the terminal station of the local network. 10. A device for monitoring the core network, comprising a second receiving unit and a second determining unit, wherein the second receiving unit is configured to receive the first aggregated message, wherein the first aggregated message is aggregated from the first OAM message to monitor the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network and the first message of the IP service to transmit service information from the terminal station local network to the terminal station of the peer-to-peer network; and the second determining unit is configured to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM message. 11. The device according to p. 10, characterized in that it further comprises a third determination unit and a second sending unit, moreover the third determining unit is configured to determine the second OAM message according to the first OAM message after determining the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network according to the first OAM message; and The second sending unit is configured to send a specific second OAM message to the terminal station of the local network, the second OAM message being used by the terminal network station to determine the quality of service from the terminal station of the local network to the terminal station of the peer-to-peer network and the quality of service from the terminal station to the peer network to the local network terminal station. 12. The device according to claim 11, wherein the second sending unit is additionally configured to send the second aggregated message to the terminal station of the local network, while the second aggregated message is aggregated from the second OAM message and the second IP service message to transmit information about service from the terminal station of the peer-to-peer network to the terminal station of the local network.

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